This series introduces the concept of masked events to the pmu event filter. Masked events can help reduce the number of events needed in the events field of a pmu_event_filter by allowing a more generic matching method to be used for the unit mask when filtering guest events in the pmu. With masked events, if an eventsel should be restricted from the guest, instead of having to add a new eventsel for every unit mask, one encoded event can be added that matches all possible unit masks. Aaron Lewis (4): kvm: x86/pmu: Introduce masked events to the pmu event filter selftests: kvm/x86: Add flags when creating a pmu event filter selftests: kvm/x86: Add testing for masked events selftests: kvm/x86: Add testing for KVM_SET_PMU_EVENT_FILTER Documentation/virt/kvm/api.rst | 46 +++++- arch/x86/include/uapi/asm/kvm.h | 8 + arch/x86/kvm/pmu.c | 128 +++++++++++++-- arch/x86/kvm/pmu.h | 1 + arch/x86/kvm/svm/pmu.c | 12 ++ arch/x86/kvm/vmx/pmu_intel.c | 12 ++ .../kvm/x86_64/pmu_event_filter_test.c | 147 +++++++++++++++++- 7 files changed, 332 insertions(+), 22 deletions(-) -- 2.36.1.124.g0e6072fb45-goog
